Zebulon e



l .@niteh tatesatent @ffice ZEBULON E. OOFFiN, OF BOSTON, MASSAOHUSTTS,ASSIGNOR TO BOSTON MACHINE COMPANY.

IMPROVEMENT IN HYDRANTS.

tite Stimuli tefttnlr tu in that Enters @that anointing ntttqqntttganr.

Be it known that I, ZEBULON'EOOFFIN, of Boston, in the county of Suolk,and State of mliIassaehusetts, have invented a new and usefulImprovement in Fire-Plugs or Hydrants; and I do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being had to th'e'annexed drawings,making a part of this specification, in which- Figure 1 is a sectionalelevation.

Figure 2 is a sectional view on line Y Z.

Figure 3 is a sectional view online W X.

Figure 4 is a'pla'n of the cover. l

Figure 5 is a sectional elevation of the upper 'part of a flush-tophydrant, which maybe used instead of the post-hydrant. y

The part C is the base or bottom; o being Va tie or strengthening-piecein the water-way, and one of several guides for the valve H. i v v Uponthe top of the part C, and above the joint, between the base and thestand-pipe or body of the hydrant,

, is an enlargement or bowl, C', Awhich has upon its upper edge anannular projection for the hook-bolts L L to take hold of to secure thebody of the hydrant to its base. This bowl receives the waste waterdischarged through the pipes M M, and discharges it through the holes nn n. This bowl should be made just large enough .to receive thelower endof the stand-pipe, andl leave suilcient room forthe necks of thehook-bolts, which are flattened opposite the projection, that they maynot occupy more room than is necessary to proper strength, so that whenall the parts are in their proper place, the hook-bolts are preventedfrom 4getting out of place, the lower end ofthe stand-pipe occupying thespace between the hoch-bolts.

n n 'tt are holes, for.tl1e waste water to pass through. a is an annularprojection on the top of the hase, for tho hook-bolts LL to take hold ofto secure the body to the base. This 4projection is madeall the wayround the base, that the hydrant-pipe may bc conveniently placed at anyequired angle to the main, as it' cannot be when Ithe common lugs orbolts in usc are used.

, I-I isthe valve for closing the water-way. M M are waste-pipes, tofree the hydrant from'water when not in use. I I, the valves, to closethe waste-pipes, when the 'hydrant is in use. K is the valve-stem.V A isthe body or'stand-pipe ofthe hydrant. B is the hydrant-case. D is thefrost-jacket. I is the hose-nozzle. U, the cap to hosenozzle. S, glandto smiling-box. y G, the nut by which the valve is worked through therod or stem K. The lower end of this nut, which has its bearing upon thebody ofthe hydrant, is so enlarged as to make a cap or cover for thestalling-'box and gland S, and by removing the` small screw at thetop,.the screw upon the rod K may be oiled without removing the cover F;also, by removing the cover F the nut G may be conveniently removed, undthe stuihng-box around the rod K b'c-repaeked. It also has a pocket orenlargement above the femalethread, and between it and the top, whichserves as an cil-cup to the screw on the top ofthe rod K. 1*', thecover, which is held in its place by inclined lugs or bolts, and answerstwo purposes, viz, to hold the nut G in its place, and cover the topofthe hydrant. E, a ring, that forms a part ofthe case.

' Advantages Gained by this Inventoni I .l

First. The valve closes the water-way at a point on a level with the topofthe pipe, so that the water may be drawn, when the hydrant is not inuse, much lower than when I the'com'mon hydrant-bend is used, thereby irendering the hydrant less liable to injury byv frost.

Second. The hydrant'being firmly set in the ground, and the earth filledin to the ground-level, the ring E may be raised, and the nuts on thehook-bolts L L loosened, and the hydrant removed, the ease remaining inthe ground, and another put in its place, or repairs made, and replacedwithout diggingup' the ground, thereby saving the expense of wood orbrickbcxes, such as are usually used.

Third. The frost-jacket D, having a space between it and the case,prevents the earth from freezing to thecase, and the case being liftedby the frost, and is also a protection to the hydrant from freezing.

Fourth. The waste-pipesfoy this ar1engen1'ent, can be made with direct,clean openings, and the valves being opened by it' positive movement,end .notvhy springs or gravitation, are sure to free the hydrant ofwitter at the right time, and are not likely to choke up as in otherdevices in use for this purpose. I

Claims. 1. I claim the combination of the baseer bottom ofthe hydrantwith the body of the hydrant, hook-bolts, Waste-pipe or pipes, andWeste-valves,hydrant-valves, and outside ce'sefall constructed in themanner end for the purpose set forth. v

2. I claim the hook-bolts L L, in combination with the body'A andbowl'C, having an annulzil projetion, a, when the parte are constructedsubstantially in the manner and for the purpose set forth. v 8. I claimthe n'n-t Gr, in connection with the rod or valve-Stem K and bodylA,when the parts tre colistructed and arralnged to operate substantiallyas described.

z. E. COFFIN.

Witnesses:

THOMAS GAUNT, GrEo.A W. HOWARD.

